Pcpetejia



(No Mod-e1.)

W. T. ROSS.

THILL OOUPLING.

No. 402,974. Patented May 7, 1889.

UNITED STATES PATENT GEEICE.

TALTER T. ROSS, OF QUEBEC, QUEBEC, CANADA.

THlLL-COUPLING. f

SPECIFICATION forming part of Letters Patent No. 402,974, dated May 7, 1889.

Application tiled August 30, 1888. Serial No. 284,205. (No model.)

To all whom it may concern.-

Beit known that I, WALTER T. Ross, of the city, county, and Province of Quebec, in the Dominion of Canada, have invented certain new and useful Improvements in Thill-Couplings; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, in which- Figure l is a top view of my improved thillcoupling. Fig. 2 is a side elevation of the same, and Fig. 3 is a plan of Fig. l inverted.

My invention relates to that class of thilleouplings in which two jaws are hinged together by the rear leg of a clip which secures the Jchill-coupling to the axle of the vehicle, said jaws Opening apart to receive the thilliron intermediately and a coupling-bolt passing through the thill-iron and jaws; and the object of my present invention is to prevent rattling of the the thill-iron when the jaws are closed against the thill iron and the bolt screwed to tighten the same, and also to diminish frictional wear at the joint and to take up looseness resulting therefrom.

My invention consists of a thill-coupling having two jaws hinged together at the rear end to be both movable apart, and means for securing the same to the axle, the front end of said jaws having a coniform projection, the smaller ends opposite to one another and having holes in alignment horizontally to receive a coupling-bolt, and a thill-iron having a bore to receive the coupling-bolt, said bore conically enlarged at both ends to admit the con es of the jaws, so that by tightening the coupling-bolt the cones will be drawn inwardly to take up wear of the thill-iron, and thereby prevent rattling.

l is the axle of the vehicle; 2, the clip; 3, the coupling-bolt, and 41. the thill-iron, having a bore parallel to the axle to admit the coupling-bolt.

5 6 are the coupling-jaws, hinged together at the rear end by the rear ieg of the clip passing through ahole in the jaws and through a hole in plate 7 under the jaws, said leg provided with a nut, 8,which supports said plate when clipped to the axle. The other leg of the clip passes between said jaws and through plate 7 and is provided with a nut, 0, said plate underlying the jaws, and the nut supports the same when clipped to the axle of a vehicle.

As both jaws are movable to admit the thilliron interveningly, the coupling-bolt will be parallel to the axle, thus avoiding straining of the thills to effect coupling. The outward or forward end of the jaws 5 6 are provided with a coniform projection, 10, from the inner face of the jaws and integral therewith, so that the two small en ds will point toward each other. The jaws and projections therefrom have holes in alignment to receive the coupling-bolt 8, and the bore of the thill-iron is conically enlarged at both ends to coincide with the coniform projection 10 of the jaws. When coupling, the jaws are opened apart to admit the thill-iron and again closed, the coniform projections then entering the conicallyenlarged bore of the thill-iron. The couplingbolt is then passed into the holes in the jaws and projections and thill-iron and nut 13 on the coupling-bolt screwed up to tighten the coniform projections in the coinciding bore of the thill-iron.

I claim as my invention- The-combination of the axle-clip 2, the movablejaws 5 6, havinginwardly-facing coniform projections l0 at the forward end and hingedY together at the rear by one leg of the clip, the other leg intervening the jaws, the plate 7, supporting said jaws and bearing on the clipnuts, the thill-iron 4, having a bore conically enlarged at both ends, and the coupling-bolt 3, passing through the bore of the coniform projections and thill-iron and provided with a nut, 13, at the end, as set forth.

VALTER T. ROSS. Witnesses:

HERBERT G. Ross, F. A. ANDREWS, Jr. 

